[INFO] crate casperlabs-contract 0.5.1 is already in cache
[INFO] checking casperlabs-contract-0.5.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate casperlabs-contract 0.5.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate casperlabs-contract 0.5.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casperlabs-contract 0.5.1
[INFO] finished tweaking crates.io crate casperlabs-contract 0.5.1
[INFO] tweaked toml for crates.io crate casperlabs-contract 0.5.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb2d7eeef6299db94ba54b2c89ab981f7bb5c86401edfdbdfd555d088e3e20e5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bb2d7eeef6299db94ba54b2c89ab981f7bb5c86401edfdbdfd555d088e3e20e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb2d7eeef6299db94ba54b2c89ab981f7bb5c86401edfdbdfd555d088e3e20e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb2d7eeef6299db94ba54b2c89ab981f7bb5c86401edfdbdfd555d088e3e20e5", kill_on_drop: false }`
[INFO] [stdout] bb2d7eeef6299db94ba54b2c89ab981f7bb5c86401edfdbdfd555d088e3e20e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 50172ec95aa779782673ae863103805b0d2d2f19153036b476a7e75eeb08bc65
[INFO] running `Command { std: "docker" "start" "-a" "50172ec95aa779782673ae863103805b0d2d2f19153036b476a7e75eeb08bc65", kill_on_drop: false }`
[INFO] [stderr]     Checking casperlabs-types v0.5.1
[INFO] [stderr]     Checking casperlabs-contract v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]  --> src/handlers.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     unsafe {
[INFO] [stdout]   |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/handlers.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     unsafe {
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `core::alloc::Layout`, which is not FFI-safe
[INFO] [stdout]   --> src/handlers.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub extern "C" fn oom(_: ::core::alloc::Layout) -> ! {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "50172ec95aa779782673ae863103805b0d2d2f19153036b476a7e75eeb08bc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50172ec95aa779782673ae863103805b0d2d2f19153036b476a7e75eeb08bc65", kill_on_drop: false }`
[INFO] [stdout] 50172ec95aa779782673ae863103805b0d2d2f19153036b476a7e75eeb08bc65